UNWB Full-Stack Web Developer, Multiple positions

Location: Home based

Organization: UNOPS

Deadline: 02-Nov-2025

Job Description

Background Information – Job-specific

Organization:

The United Nations Office for Project Services (UNOPS) is an operational arm of the United Nations, supporting the successful implementation of its partners’ peacebuilding, humanitarian and development projects around the world. UNOPS supports partners to build a better future by providing services that increase the efficiency, effectiveness and sustainability of peace building, humanitarian and development projects. Mandated as a central resource of the United Nations, UNOPS provides sustainable project management, procurement and infrastructure services to a wide range of governments, donors and United Nations organizations.

The UN Web Buy team (UNWB) is part of the UNOPS Procurement Group. We provide procurement services to UNOPS offices globally and to external clients (IGOs, NGOs, governments) through unwebbuyplus.org – UNOPS e-commerce solution. The solution is built and operated by the UNWB team.

The UNWB Full-Stack Web Developer will be responsible for developing high-quality, secure, scalable, and maintainable code to enhance and extend the UNWB platform. The successful candidate will be working as part of the team and under the supervision of UNWB Application Architect.

Functional Responsibilities

Under the supervision of the UN WebBuy Application Architect, the UN WebBuy Full-Stack Web Developer will be responsible for developing high-quality, secure, scalable, and maintainable code artifacts for the UN WebBuy platform. They will also be responsible for troubleshooting production issues and providing support to the end users.

1. Develops the UNWB platform

UNWB Full Stack-Stack Web Developer will work independently to develop system features and improvements according to technical specifications and requirements received from the UNWB Application Architect.

Designs and implements features and system improvements using:
- .NET/C#
- SQL Server
- Entity Framework
- JavaScript, HTML, CSS
- Other technologies that may be adopted by the team
Develops and maintains high-performance, scalable, and secure code
Creates detailed technical specifications for complex features
Implements best practices for code quality and performance optimization
Maintains comprehensive technical documentation

2. Ensures Quality and Testing Standards

UNWB Full Stack-Stack Web Developer will be responsible for upholding the quality standards set by the UNWB Application Architect.

Works closely with QA person to resolve issues
Implements automated testing frameworks
Develops comprehensive test strategies for new features
Participates in code reviews
Implements and maintains CI/CD pipelines
Troubleshoots complex technical issues
Monitors and optimizes system performance

3. Contributes to Technical Excellence

UNWB Full Stack-Stack Web Developer will participate in technical discussions and brainstorming sessions. They will independently carry out research into specific areas and prepare their findings and recommendations.

Researches and evaluates new technologies
Proposes system improvements
Contributes to technical design discussions
Maintains high standards for code quality and development practices
Participates in architectural discussions

4. Provides User Support and Technical Troubleshooting

UNWB Full Stack-Stack Web Developer will work with the end users for support requests as assigned by UNWB Application Architect. They will also be responsible for troubleshooting and resolving system issues as needed.

Responds to and resolves complex technical support tickets from internal and external users
Investigates and diagnoses system issues across the full technology stack
Performs root cause analysis for production incidents
Creates and maintains documentation for common support issues and solutions
Implements fixes and patches for identified issues
Collaborates with the operations team to ensure minimal system downtime
Participates in on-call rotation for critical system support when required

Education/Experience/Language requirements

a. Education

Master’s Degree, preferably in Computer Science, Information, Technology and Information Systems or other relevant discipline is required.
A Bachelor’s degree in combination with additional two years of experience may be accepted in lieu of master’s degree.
Secondary education in combination with additional six years of experience may be accepted in lieu of a masters degree.

b. Experience

A minimum of 2 years of professional experience as a full-stack web developer is required.
Proficiency with at least one of these:
- NET, C#, Entity Framework and relational databases (eg. SQL Server).
- Web technologies (JS/TypeScript, HTML, CSS) and at least one modern front-end framework like Svelte or React

c. Languages

Full working knowledge of English is required

d. Other Requirements

Able to work with the Southeast Asian time zone (GMT+7).